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Finding the Fourth Proportional to 112,591.10, 155,197.06 and 88,679.90

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Solution

The fourth proportional to 112,591.10, 155,197.06 and 88,679.90 is: 122,237.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,591.10 : 155,197.06 = 88,679.90 : x
  2. Step 2: Convert to fraction form
    112,591.10/155,197.06 = 88,679.90/x
  3. Step 3: Cross multiply
    112,591.10x = 155,197.06 × 88,679.90
  4. Step 4: Simplify right side
    112,591.10x = 13,762,858,763.41
  5. Step 5: Solve for x
    x = 13,762,858,763.41/112,591.10
  6. Step 6: Final answer
    x = 122,237.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.